JPS6035006B2 - Movement measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the amount of movement of a conveyed material during conveyance processing of a steel plate or the like.

Generally, in the processing of steel plates, it is necessary to transport a large number of steel plates to a processing machine for the purpose of processing them quickly, and to measure the position of the steel plates in order to accurately transport them to the processing machine. In FIG. 1, 1 is a conveyance roll that conveys a steel plate, 2 is a drive device that drives the conveyance roll, 3 is a roll rotation amount measuring device that measures the amount of rotation of the conveyance roll, 4 is a steel plate that is conveyed, 5 is a steel plate tip detector that detects the tip position of the steel plate being conveyed; 6 is a movement amount measuring circuit that integrates the roll rotation amount signal measured by the roll rotation amount measuring device 3; and 7 is detected by the steel plate tip detector 5. This is a gate circuit that sends the set value of the position of the steel plate tip detector 5 to the movement amount measuring circuit 6 based on the tip detection signal.

Next, the operation will be explained.

In FIG. 1, the operation of measuring the amount of movement of the steel plate 4 to be conveyed is performed as follows. The steel plate 4 is conveyed by the conveyance roll 1 driven by the roll drive machine 2 .

A steel plate tip detection signal detected when the tip of the transported steel plate 4 passes the steel plate tip detector 5 is sent to the gate circuit 7.

The set value is outputted to the movement amount measuring circuit 6 by the steel plate tip signal through the gate circuit 7. A movement measurement circuit 6 that is set to a set value when the tip of the steel plate passes the steel plate tip detector 5.
As a result, the amount of movement of the steel plate to be conveyed is measured by integrating the roll rotation amount signal sent from the roll rotation amount measuring device 3 after the tip detection time, that is, the steel plate movement amount signal. Since the subordinate displacement measuring device is configured as described above, it has the disadvantage that only the displacement of one steel plate can be measured using one roll rotation amount measuring device. This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and detects the number of steel plates by using a large number of steel plate tip detectors, and calculates the setting value to be set in the movement amount measuring circuit for each steel plate. It is an object of the present invention to provide a movement amount measuring device that can quickly convey a large number of steel plates to a processing machine and accurately measure the position of the conveyed steel plates by setting the movement amount measurement circuit corresponding to the above.

For convenience of the following explanation, one implementation of the movement amount measuring device of the present invention will be described with reference to the drawings.

In Fig. 2, 1 is a transport roll that transports the steel plate;
3 is a roll rotation amount measuring device that measures the amount of rotation of the conveyance roll; 4 is a steel plate to be conveyed; and 5 and 5a are installed on the entrance and exit sides of the conveyance line, respectively. A steel plate tip detector 6, 61, . . . , 6n detects the position of the tip of the steel plate being conveyed by measuring the rotation amount of the roll. The circuit 7 sets the set value 6, 61, 6n based on the tip detection signal detected by the steel plate tip detector 5.
A gate circuit 8 sends a signal to the movement measuring circuit of the steel plate between the detectors 5 and 5a, which uses the tip detection signal of the steel plate tip detector 5 as an addition signal, and uses the tip detection signal of the steel plate tip detector 5a as a subtraction signal. This is a number detection circuit.

In FIG. 2, 1, 2, 3, 4, 5, 6, 7 are the same parts as the conventional device configuration, and in the present invention, in order to solve the problems of the conventional technology, 5a, 61, . . . ..., 6n
, 8 device configurations were added.

The operation of the movement amount measuring device of the present invention will be explained based on FIG. Signals detected by the steel plate tip detectors 5 and 5a, which detect the tip of the steel plate 4 conveyed by the conveyance roll 1, are sent to the steel plate number detection circuit 8. The steel plate number detection circuit 8 adds the tip detection signals from the steel plate tip detector 5 one by one and subtracts the number of tip detection signals from the steel plate tip detector 5a one by one. 5
Detect the number n of steel plates between a.

Next, when the steel plate tip detector 5 detects the tip of the steel plate, the steel plate tip detector 5
The set value of the position is set through the gate circuit 7. After the above setting value setting operation, the signal generated by the rotation amount measuring device 3 that measures the rotation amount of the conveying roll 1, that is, the movement amount signal of the steel plate to be conveyed, is transmitted to all n movement amount measuring circuits 1 to n,
By integrating the feeds to 6, 61, . . . 6n, the amount of movement of n conveyed steel plates can be measured separately. In addition, although the above embodiment has been described with respect to a steel plate, it goes without saying that this measurement method can be applied to other materials to be measured as well, and the same effects as in the above embodiment can be achieved.

As described above, according to the present invention, it has become possible to quickly transport a large number of steel plates to a processing machine and to accurately measure the positions of the steel plates being transported.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a conventional movement amount measuring device, and FIG. 2 is a block diagram showing an embodiment of the movement amount measuring device of the present invention. 1 is a conveyance roll that conveys the steel plate; 2 is a roll drive machine that drives the conveyance roll; 3 is a roll rotation amount measuring device that measures the amount of rotation of the conveyance roll; 4 is a steel plate to be conveyed; 5;
5a is a steel plate tip detector for detecting the tip position of the steel plate being conveyed; 6, 61, . . . , 6n are movement amount measuring circuits; 7 is a gate circuit; and 8 is a steel plate number detection circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts. Figure 1 Figure 2

Claims (1)

[Claims] 1 Conveyance rolls that convey conveyed materials such as steel plates, roll drive machines that drive these conveyance rolls, roll rotation amount measuring devices that measure the amount of rotation of the conveyance rolls, installed on the entrance and exit sides of the conveyance line, respectively. A steel plate tip detector detects the tip position of the steel plate, and the detection signal of the input side steel plate tip detector is used as an addition signal, and the detection signal of the output side steel plate tip detector is used as a subtraction signal. A steel plate number detection circuit that detects the number of steel plates, and a plurality of movement amount measuring circuits that measure the amount of movement of the steel plate based on the rotation amount signal from the rotation amount measuring device, and the tip of the steel plate is detected by the steel plate tip detector. A displacement measurement device characterized in that it can be used in one roll rotation amount measuring device to individually measure the displacement of a large number of conveyed steel plates by operating a displacement measurement circuit corresponding to the number of steel plates.